CO2 concentration layering inversion method and system of multi-wavelength laser radar

Abstract

The invention provides a CO2 concentration layering inversion method and system of a multi-wavelength laser radar. The method comprises the following steps: S100, layering a CO2 concentration inversion integration route in a vertical direction according to the influence of weather and carbon circulation on CO2 concentration; S200, respectively establishing a corresponding CO2 concentration multi-wavelength inversion model and a weight model for each layer, and obtaining a CO2 column concentration calculation model of each layer; S300, performing linear equation aggregation according to the CO2column concentration calculation model of each layer, obtaining an observation equation adopting the CO2 column concentration of each layer as a to-be-calculated parameter, calculating the CO2 columnconcentration of each layer by adopting a linear least square method, and calculating the CO2 concentration of each layer according to the CO2 column concentration. According to the CO2 concentrationlayering inversion method and system of the multi-wavelength laser radar, the actual distribution state of CO2 in atmosphere is considered, and a CO2 concentration inversion result with higher accuracy can be obtained.

Description

technical field [0001] The invention belongs to satellite inversion CO 2 Concentration technical field, especially CO related to multi-wavelength lidar 2 Concentration layered inversion method and system. Background technique [0002] "Global warming" has become the hottest topic of environmental protection. Global warming is mainly caused by greenhouse gases. The formation process of this phenomenon is: the ground receives the short wave of solar radiation and emits part of the long wave to the atmosphere, and the greenhouse gas absorbs a large amount of energy emitted by the long wave of the ground radiation, so the temperature between the ground and the greenhouse gas gradually rises. Greenhouse gases mainly include CO 2 、CH 4 , water vapor, etc., in these gases, CH 4 The impact efficiency is the highest, CO 2 next. But CO 2 The content is about CH 4 4 times that of CO 2 Considered the most important greenhouse gas. So study CO 2 The carbon sources and carbon ...

AI Technical Summary

Problems solved by technology

[0010] Existing CO 2 None of the differential absorption LiDAR retrieval methods considered CO in the atmosphere 2 The true distribution of CO2 also ignores the changes in the pressure in the atmosphere and air mass (air mass) and other influencing factors, so the CO 2 There is still room for further improvement in inversion accuracy

Images